出版日期：2017-06-29 00:00:00

著者：Chii-Dong Ho; Ching-Fang Hsiao; Hsuan Chang; Yi-En Tien; Zih-Syuan Hong

著錄名稱、卷期、頁數：Energies 10(7), p.875-889

摘要：The influence of recycling on double-pass solar air collectors with welding of the V-corrugated absorber has been studied experimentally and theoretically. Welding the V-corrugated absorber and the recycle-effect concept to the solar air collector was proposed to strengthen the convective heat-transfer coefficient due to turbulence promotion. Both the recycle effect and the V-corrugated absorber can effectively enhance the heat transfer efficiency compared to various designs such as single-pass, flat-plate double-pass, and double-pass wire mesh packed devices. Recycling operations and welding the V-corrugated absorber could enhance the collector efficiency by increasing the recycle ratio, incident solar radiations, and air mass flow rates. The most efficient and economical operating conditions were found at R= 0.5, with relatively small hydraulic dissipated energy compensation. It was found that the turbulence intensity increase from welding the V-corrugated absorber into the solar air collector channel could compensate for the power consumption increase, when considering economic feasibility.

關鍵字：solar air heater; V-corrugated absorber; recycle effect; heat-transfer efficiency;

語言：en

ISSN：1996-1073

期刊性質：國內

收錄於：SCI

通訊作者：Chii-Dong Ho

審稿制度：否

國別：CHE

出版型式：電子版